Not sure where you're located, but this is the only site (UK-based) I could think of that sells flame moss carpet squares. Not eBay, but still online...unfortunately, I don't think Petco/Petsmart sells flame moss. I've ordered from them before as well and they're legit and quite fast. The only problem is that the squares they send aren't fully grown, so it may take a while for you to get that grassy lawn look in your tank.